CONVERTIBLE BOND PAYABLE (Tables)

12 Months Ended

Dec. 31, 2023

Debt Disclosure [Abstract]

Summary of Convertible Bonds Payable

	As of December 31,
	2022		2023
	US$		US$
2021 Series A1 Note US$ 44,000,000 1.00% due to 2026		41,531,679		42,957,209
2021 Series A2 Note US$ 21,000,000 1.00% due to 2026		21,330,823		21,543,492
2021 Series B Note US$ 90,000,000 1.00% due to 2026		91,474,981		92,386,990
		154,337,483		156,887,691